APA aipamena

Richmond, O. P. (2018). Peace: A Very Short Introduction. Oxford University Press.

Chicago Style aipamena

Richmond, Oliver P. Peace: A Very Short Introduction. Oxford University Press, 2018.

MLA aipamena

Richmond, Oliver P. Peace: A Very Short Introduction. Oxford University Press, 2018.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.